Installation Guide

32
Installation Practices
minimizes the need for concealed ttings and makes the installation of gas connections
for moveable appliances easy. The ange plate should be securely fastened in place during
rough-in of the structure. It may be attached to a brace spanning between wall studs or
directly to the oor.
As an alternative to the special termination ange, a termination can be made with rigid pipe
connected to the main HOME-FLEX® system. The rigid stub-out must be fastened to the wall
or oor using a pipe ange or other rigid mounting object.
Connections made between HOME-FLEX® and movable appliances must be made with a
HOME-FLEX® Flexible Appliance Connector, or similar approved device.
Direct connections between HOME-FLEX® CSST and movable appliances are not allowed.
Direct Connection
In most localities, xed appliances may be
directly connected to HOME-FLEX® exible gas
piping systems. When located in a secure ded-
icated place, like an attic or garage, the gas
piping can be connected directly to the appli-
ance shut-o valve without installing a special
termination ange or exible appliance connec-
tor. (Figure 4.17)
Pad-Mounted Equipment
Gas equipment like pool heaters, generators,
heat pumps, and gas air conditioners that are
mounted on concrete pads should connect to
the HOME-FLEX® system at a termination tting
with either black steel pipe or an approved out-
door appliance connector. Direct connection
of HOME-FLEX® to pad-mounted equipment is
allowed when the CSST is securely supported
and protected from physical damage, so long
as such practice is permissible by local and state
codes. Any exposed tubing
should be wrapped with
self-bonding silicone tape,
sealing the tting connec-
tion.
Roof Top Equipment
Special mechanical pro-
tection of HOME-FLEX®
tubing is not required for
roof-mounted equipment
unless the tubing may be
subject to physical or envi-
ronmental damage in the location. It is recommended that the tubing be covered to protect it
from the elements. HOME-FLEX® tubing should penetrate the roof within 6 feet of the equip-
ment location, whenever possible. Long runs of tubing on the roof should be supported
with nonmetallic blocks at the intervals specic in Table 4.2, and raised above the roof at the
height dictated by local code. (Figure 4.18)
In addition to nonmetallic blocks, HOME-FLEX® can be supported with a strut or channel run-
ning from block to block. This provides a secure, damage resistant track for the CSST and
allows for the block spacing to be set at every 8 feet. The channel run should be a ⁄" gal-
vanized shallow channel with splice plates at joints and bends. HOME-FLEX® tubing should
appliance
shut-off valve
drip leg
sediment trap
(if
required by code)
union
(if required by code)
Figure 4.17 Direct Connection to Fixed Appliance
Non-moveable Appliance
Union (if required
by code)
Drip Leg
Sediment Trap
(if required by
code)
Appliance
Shut-off Valve
TYPICAL:
NON-METALLIC TUBING SUPPORT
SPACING PER TABLE 4-2
*TUBING ELEVATED
4-6" TYP. ABOVE ROOF
S
TANDARD ROOF
PENETRATION
TUBING CLIP
CSST
HUNG CEILING
SHUT-OFF VALVE UNION
GAS
APPLIANCE
*HEIGHT OF ELEVATION BASED ON LOCAL PLUMBING/BUILDING
CODE REQUIREMENTS AND/OR WINTER ICE BUILDUP.
Figure 4.18 Roof Top Equipment Installation
CSST
Tubing Clip
Standard Roof
Penetration
Typical: Nonmetallic Tubing Support
Spacing per Table 4.2
Tubing Typically Elevated
4-6" Above Roof*
Shut-off Valve
Union
Gas
Appliance
Hung Ceiling
* Height of elevation based on local plumbing/building code requirements
and/or winter ice buildup.
Figure 4.19 Rooftop Support with Strut
CSST
Clamp
Channel
Roof
Nonmetallic Block